Deciphering the 3-D Orion Nebula-I: Expanding Shells in the Huygens Region

Abstract

Based on imaging and spectroscopic data, we develop a 3-D model for the Huygens Region of the Orion Nebula. Theta1OriC , the hottest star in the Trapezium, is surrounded by a wind-blown Central Bubble that opens SW into the Extended Orion Nebula. Outside of this feature lies a layer of ionized gas at about 0.4 pc from Theta1OriC. Both of these features are moving rapidly away from Theta1OriC with an expansion age for the Central Bubble of only 15,000 yrs.

References in corpus (4)

• The Gould's Belt Distances Survey (GOBELINS) II. Distances and structure towards the Orion Molecular Clouds
• Million-Degree Plasma Pervading the Extended Orion Nebula
• The three dimensional dynamic structure of the inner Orion Nebula
• IRAM-30m large scale survey of ${}^{12}$CO(2-1) and ${}^{13}$CO(2-1) emission in the Orion molecular cloud

Cited by in corpus (17)

• PDRs4All III: JWST's NIR spectroscopic view of the Orion Bar
• PDRs4All II: JWST's NIR and MIR imaging view of the Orion Nebula
• The Villafranca catalog of Galactic OB groups. II. From Gaia DR2 to EDR3 and ten new systems with O stars
• Photoionized Herbig-Haro objects in the Orion Nebula through deep high-spectral resolution spectroscopy I: HH529II and III
• Photoionized Herbig-Haro objects in the Orion Nebula through deep high-spectral resolution spectroscopy II: HH204
• The mid-infrared molecular inventory towards Orion IRc2
• PDRs4All. X. ALMA and JWST detection of neutral carbon in the externally irradiated disk d203-506: Undepleted gas-phase carbon
• PDRs4All VI: Probing the Photochemical Evolution of PAHs in the Orion Bar Using Machine Learning Techniques
• SIRIUS Project. V. Formation of off-center ionized bubbles associated with Orion Nebula Cluster
• Multiline observations of hydrogen, helium, and carbon radio-recombination lines toward Orion A: A detailed dynamical study and direct determination of physical conditions
• Photoionization feedback in turbulent molecular clouds
• Deciphering the 3-D Orion Nebula-II: A low-ionization region of multiple velocity components southwest of Theta1OriC confounds interpretation of low velocity resolution studies of temperature, density, and abundance
• Backscattering and Line Broadening in Orion
• Deciphering the 3-D Orion Nebula-III: Structure on the NE boundary of the Orion-S Embedded Molecular Cloud
• Large Scale Wind Driven Structures in the Orion Nebula
• Deciphering the 3-D Orion Nebula-IV: The HH~269 flow emerges from the Orion-S Embedded Molecular Cloud
• PDRs4All XVII: Formation and excitation of HD in photodissociation regions. Application to the Orion Bar